Charts ((top)) Download - Cm93 V2
| Feature | CM93 v2 (Pirated/Outdated) | NOAA (Free) | o-charts (Paid) | OpenSeaMap (Free) | | :--- | :--- | :--- | :--- | :--- | | | Illegal (Pirated) | Legal (Official) | Legal (Licensed) | Legal (Open) | | Data Source | Jeppesen/C-MAP (compromised) | NOAA | Hydrographic Offices | Crowdsourced | | Update Status | ~10+ years out of date | Weekly (via NtM) | Regular | Continuous | | Cost | Free (illegally) | Free | Paid (varies) | Free | | Coverage | Global | USA only | Global (per license) | Global | | Safety | Dangerous (outdated data) | Safe (official) | Safe (official) | Variable | | Software Support | OpenCPN, SEAiq, etc. | OpenCPN, others | OpenCPN (+ plugins) | OpenCPN, others |
Because CM93 v2 is an unencrypted format, it integrates seamlessly with various open-source marine electronics software.
: These are vector charts, meaning they contain data layers for depth, buoys, and shorelines that users can interact with. cm93 v2 charts download
. One of the few ways to get a complete global vector chart set in a single directory. Legal Status Grey Market/Pirated
CM93-v2 is a vector chart format created by C-MAP (Jeppesen). Unlike raster charts, which are essentially digital photos of paper charts, CM93 vector charts contain data that can be queried (e.g., clicking on a buoy to get its flash pattern or a light’s range). | Feature | CM93 v2 (Pirated/Outdated) | NOAA
Explain the difference between in more detail
He pulled up an overlay of the official ENC vectors. They were sterile and polite, sleek polygons and standardized notations. Safe on paper. The CM93 v2 layer, by contrast, held accumulated human marks: “wreck,” “old pier—submerged,” a penciled note: “anchored here, 1999—good holding.” Kai felt a tremor of nostalgia—a map that remembered people. Unlike raster charts, which are essentially digital photos
If you are searching for a place to download CM93 v2 charts, it is vital to understand the legal and safety landscape.
CM93 V2 is a proprietary vector chart format developed by C-MAP, a private company. It's crucial to distinguish between the two main versions:
Mariners should be aware that using a 2015 dataset for navigation in 2026 means you are missing over a decade of critical updates: new buoys, changed channel markers, shifted sandbars, updated depths, new wrecks, new port facilities, and countless other Notice to Mariners (NtM) corrections.